A battery testing system and testing method for new energy vehicle maintenance

Abstract

The invention relates to the technical field of new energy vehicle maintenance, and in particular to a battery testing system and a testing method for new energy vehicle maintenance; the system comprises a rack, a slide rail, a placement plate, a charging interface, a voltmeter, an adaptive clamping plate, and a detection plate; the invention can solve the following problems existing in the prior art in the process of testing batteries for new energy vehicle maintenance: the system cannot be adjusted according to the battery gap, so that multiple types of electric vehicle batteries cannot be detected during use; and a single battery detected to have problems cannot be marked; the invention can achieve all-round clamping of batteries through an adaptive clamping plate, and can clamp batteries of various types and sizes; the invention can detect batteries of different types, greatly improving the scope of use; the invention can also mark batteries with problems, so that the single battery that needs to be repaired can be confirmed by viewing the mark during the subsequent battery maintenance process.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicle maintenance, and in particular to a battery testing system and a testing method for new energy vehicle maintenance. Background Art

[0002] New energy vehicles are becoming more and more common in people's lives. With the increase in the number of vehicles, after a long period of use, the batteries of electric vehicles need to be repaired and inspected. In particular, during the maintenance process, it is necessary to perform a discharge test to evaluate whether the battery capacity meets the standards, determine whether the battery is aged or damaged, and then measure the internal resistance of the battery. An increase in internal resistance usually means that the battery performance has declined and may need to be repaired or replaced. It is also necessary to check the voltage of each single cell in the battery pack to ensure their voltage consistency and avoid battery pack performance degradation due to uneven voltage. In addition, the battery models of various electric vehicles and the spacing of their battery assemblies will be different.

[0003] In the prior art, a large number of battery testing systems and corresponding devices for new energy vehicle maintenance are also disclosed, among which:

[0004] For example, a Chinese patent with publication number CN116609695A discloses a battery testing device for new energy vehicle maintenance, including a test box, an open slot, a sliding plate, a first sliding slot, a second sliding slot, a positive electrode tester, and a negative electrode tester; when in use, through the coordination of the overall structure, the single cell voltage of each battery is first tested, and then the overall voltage of the battery assembly is tested, and the data of the positive electrode tester and the negative electrode tester are received and processed by the receiving system, so that the single cell voltage of each battery and the overall voltage of the battery assembly are received and recorded by the receiving system.

[0005] However, the above-mentioned new energy vehicle maintenance battery testing device still has the following shortcomings in actual use:

[0006] 1. Although the above-mentioned prior art can detect the single cell voltage of each battery and the overall voltage of the battery assembly through the coordination of the overall structure, the battery model of each electric vehicle is different, and the gaps between the battery cells are different. The above-mentioned prior art cannot be adjusted according to the battery gap, making it impossible to detect multiple models of electric vehicle batteries during use.

[0007] 2. Although the above-mentioned prior art can detect the voltage of each battery cell, it is unable to mark the battery cell voltage when a problem is detected, so that the subsequent maintenance process needs to search for records, making the maintenance process cumbersome.

[0008] Therefore, based on the above-stated viewpoints, there is still room for improvement in the existing technology of new energy vehicle battery maintenance. Summary of the invention

[0009] In order to solve the above problems, the present invention provides a battery testing system for new energy vehicle maintenance, including a frame, two slide rails are installed on the upper end of the frame, a placement plate is installed on either side of the extension direction of the two slide rails, a charging interface is installed on the side of the placement plate close to the slide rail, a voltmeter is installed on the side of the placement plate away from the slide rail, the charging interface and the voltmeter are electrically connected, an adaptive clamping plate is slidably connected in the slide rail, and detection plates are installed on both the upper and lower sides of the slide rail;

[0010] The slide rails are rotatably connected to a plurality of rotating gears on opposite sides, and two sliding racks are symmetrically installed on both sides of the rotating gears. The sliding racks are meshed with the rotating gears. The two sliding racks are vertically arranged, and the extension sections of the two sliding racks are respectively connected to the detection plates on the upper and lower sides. A plurality of detection probes are arranged on the opposite sides of the two detection plates, and the detection probes are electrically connected to the voltmeter.

[0011] Preferably, a hydraulic cylinder is slidably connected in the slide rail, a telescopic rod is connected to the telescopic end of the hydraulic cylinder, adaptive clamps are connected to the upper and lower telescopic ends of the telescopic rod, a tension spring is installed between the extension section of the adaptive clamp and the hydraulic cylinder, and a connecting rod is connected between the two adaptive clamps along the length direction of the slide rail.

[0012] Preferably, a driving motor is installed on the side of the slide rail close to the mounting plate through a motor seat, and two winding wheels are provided on the outer wall of the output shaft of the driving motor. The two winding wheels are respectively located on the inner sides of the slide rail, and a pull rope is wound around the winding wheels. The end of the pull rope away from the winding wheel is connected to the hydraulic cylinder thereof, and a return spring is installed between the hydraulic cylinder and the winding wheel.

[0013] Preferably, a guide plate is installed on the adaptive clamping plate away from the placement plate. The guide plate is located on the side of the adaptive clamping plate away from the placement plate. The side of the guide plate away from the adaptive clamping plate is gradually inclined toward the side away from the hydraulic cylinder.

[0014] Preferably, four columns distributed in a rectangular array are installed on opposite sides of the two detection plates, a horizontal plate is connected between every two adjacent columns, a guide hole is provided on the lower side of the horizontal plate, the guide holes of two adjacent horizontal plates are staggered up and down, a sliding groove is provided on opposite sides of every two columns, the sliding groove is located at the upper end of the horizontal plate, an adjustment plate is slidably connected between the two opposite sliding grooves, the adjustment plate is provided with two adjustment holes symmetrically distributed along its length direction, and a transfer hole is provided in the middle of the adjustment plate between the two adjustment holes.

[0015] Preferably, a plurality of hinged rods are connected to the inner side of the transverse plate, and every two adjacent hinged rods are hinged to each other and arranged at an angle to each other. The two ends of the hinged rods close to one side of the transverse plate are slidably connected in the guide hole and the adjustment hole through cylindrical pins respectively, and the cylindrical pins at the top of the two hinged rods located in the middle of the adjustment plate are rotatably inserted into the transfer hole.

[0016] Preferably, a connecting plate is rotatably connected to the hinged bottom of the hinged rod, and the longitudinal connecting plate and the transverse connecting plate are arranged alternately up and down, a sliding hole is provided on the upper end of the connecting plate, and detection probes are installed at the vertical intersections of the multiple sliding holes.

[0017] Preferably, blocking pieces are installed on the outer wall of the detection probe on both upper and lower sides of the connecting plate.

[0018] The battery test device of the battery test system for new energy vehicle maintenance includes the following steps when testing the battery: S1: battery clamping: firstly clamp the upper and lower sides of the battery by the adaptive clamping plate, and then clamp the battery horizontally by the telescopic rod, so as to clamp the battery in all directions;

[0019] S2: Battery detection: The adaptive clamp then drives the battery to move along the slide rail, and then discharges the battery. During the discharge process, it is detected whether the battery capacity meets the standard, and the internal resistance of the battery is detected at the same time. If an abnormality is detected, multiple small batteries in the battery are continuously tested;

[0020] S3: Spacing adjustment: By pulling the adjusting plate on either side, the spacing of the detection probes along the length direction of the adjusting plate is adjusted, so that the spacing of the detection probes becomes smaller or larger.

[0021] S4: Battery marking: When the detection probe finds that a single battery has a problem during the detection of the single battery, the detection probe marks the battery with the problem.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The present invention drives the telescopic rod to stretch through the guide plate, and drives the stretching spring to adaptively stretch. When the telescopic end of the telescopic rod is stretched, the telescopic rod and the stretching spring on the same side are driven to adaptively stretch synchronously through the connecting rod, and the adaptive clamping plate moves synchronously. Then the adaptive clamping plate clamps the upper and lower sides of the battery. The telescopic end of the hydraulic cylinder moves toward the side close to the battery, and drives the telescopic rod, the stretching spring and the adaptive clamping plate to move synchronously. Then the telescopic rod clamps the battery laterally, thereby realizing all-round clamping of the battery, and can clamp batteries of various models and sizes.

[0024] Second, the present invention can change the spacing between the hinged rods by pulling the adjustment plate on either side. At the same time, the hinged rods drive the connecting plates to change the spacing synchronously, and the connecting plates drive the detection probes to change the spacing, so that different types of batteries can be detected, greatly improving the scope of use.

[0025] 3. The present invention cuts off the power to the second electromagnet, so that the first electromagnet moves toward the side close to the second electromagnet under the pull of the compression spring, and drives the sliding rod to move synchronously. The sliding rod moves out of the spray hole, and the colored paint flows out of the spray hole, thereby marking the battery with problems, so that the single battery that needs to be repaired can be confirmed by observing the mark during the subsequent battery maintenance process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0027] Figure 1 It is a structural schematic diagram of the present invention.

[0028] Figure 2 It is a structural schematic diagram of the adaptive splint of the present invention.

[0029] Figure 3 It is a first structural schematic diagram of the detection board of the present invention.

[0030] Figure 4 The present invention Figure 3 A partial enlarged view of point A.

[0031] Figure 5 The present invention Figure 3 A partial enlarged view of point B.

[0032] Figure 6 It is a second structural schematic diagram of the detection board of the present invention.

[0033] Figure 7 It is a schematic diagram of the structure of the detection probe of the present invention.

[0034] In the figure, 1, rack; 2, slide rail; 21, rotating gear; 22, sliding rack; 23, servo motor; 3, placement plate; 4, charging interface; 5, voltmeter; 6, adaptive clamping plate; 61, hydraulic cylinder; 62, telescopic rod; 63, tension spring; 64, connecting rod; 65, driving motor; 66, winding wheel; 67, pull rope; 68, reset spring; 69, guide plate; 7, detection plate; 71, detection probe; 711, receiving slot; 712, Sliding rod; 713, spray hole; 714, circular plate; 715, first electromagnet; 716, second electromagnet; 717, compression spring; 718, one-way valve; 719, boost ring; 710, boost spring; 72, column; 73, cross plate; 74, guide hole; 75, sliding groove; 76, adjustment plate; 77, adjustment hole; 78, transfer hole; 79, hinged rod; 80, cylindrical pin; 81, connecting plate; 82, sliding hole; 83, baffle. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-Figure 7 Embodiments of the present invention are described in detail.

[0036] The embodiment of the present application discloses a testing method for a battery testing system for repairing new energy vehicles. It is explained that the testing method for the battery testing system for repairing new energy vehicles is mainly used in the process of testing batteries. In terms of technical effect, it can clamp batteries of various models and sizes and quickly transfer them, so as to facilitate subsequent battery testing. In particular, during the testing process, the spacing between the articulated rods 79 can be changed by pulling the adjustment plate 76 on either side. At the same time, the articulated rod 79 drives the connecting plate 81 to change the spacing synchronously, and the connecting plate 81 drives the detection probe 71 to change the spacing, so that different models of batteries can be tested, which greatly improves the scope of use. Furthermore, the testing device of the battery testing system for repairing new energy vehicles can also mark the problematic batteries after detecting the problematic batteries, so as to facilitate subsequent battery maintenance. Example

[0037] Reference Figure 1As shown, a battery testing system for new energy vehicle maintenance includes a frame 1, two slide rails 2 are installed on the upper end of the frame 1, and a placement plate 3 is commonly installed on one side of the two slide rails 2. A charging interface 4 is installed on the placement plate 3 close to the slide rail 2, and a voltmeter 5 is installed on the side of the placement plate 3 away from the slide rail 2. The charging interface 4 and the voltmeter 5 are electrically connected, and an adaptive clamping plate 6 is slidably connected in the slide rail 2. Detection plates 7 are installed on the upper and lower sides of the slide rail 2. A plurality of rotating gears 21 are rotatably connected to the opposite sides of the slide rail 2. Two sliding racks 22 are installed on both sides of the rotating gear 21. The two sliding racks 22 are vertically arranged, and the extension sections of the two sliding racks 22 are respectively connected to the detection plates 7 on the upper and lower sides. A servo motor 23 is installed on the side of the slide rail 2 close to the rotating gear 21 through a motor seat. The drive shaft of the servo motor 23 and the drive gear are driven by a belt, and the two adjacent drive gears are connected by a belt drive. A plurality of detection probes 71 are arranged on the opposite sides of the two detection plates 7, and the detection probes 71 and the voltmeter 5 are electrically connected.

[0038] In the specific implementation process, the battery that needs to be repaired is first automatically clamped by the adaptive clamp 6, and then the adaptive clamp 6 drives the battery to move along the slide rail 2 to the side close to the placement plate 3. When the adaptive clamp 6 drives the battery to move between the two detection plates 7, the battery charging slot is inserted into the charging interface 4. At this time, the battery is in the middle of the two detection plates 7, and then the battery is discharged. During the discharge process, it is detected whether the capacity of the battery meets the standard, and the internal resistance of the battery is detected at the same time; when an abnormal detection occurs, the servo motor 23 is started, and the servo motor 23 drives the rotating gear 21 to rotate, and the rotating gear 21 drives the sliding racks 22 on both sides to move close to the battery side, and drives the detection plate 7 connected thereto to move close to the detection plate 7, and then the detection probe 71 on the upper end of the detection plate 7 is respectively connected to the positive and negative poles of multiple small batteries in the battery, and then a single small battery in the battery is detected, so as to quickly detect the problematic small battery, and then the problematic small battery can be replaced.

[0039] Reference Figure 1 and Figure 2 As shown, the battery sizes of various trams are different. In order to be able to clamp batteries of various sizes and facilitate subsequent detection, an adaptive clamp 6 is provided in this embodiment; specifically, a hydraulic cylinder 61 is slidably connected in the slide rail 2, and a telescopic rod 62 is connected to the telescopic end of the hydraulic cylinder 61, and the upper and lower telescopic ends of the telescopic rod 62 are connected to the adaptive clamp 6, a tension spring 63 is installed between the extended section of the adaptive clamp 6 and the hydraulic cylinder 61, and a connecting rod 64 is connected between the two adaptive clamps 6 along the length direction of the slide rail 2.

[0040] Furthermore, in the present embodiment, a driving motor 65 is installed on one side of the slide rail 2 close to the placement plate 3 through a motor seat, and two winding wheels 66 are sleeved on the outer wall of the output shaft of the driving motor 65. The two winding wheels 66 are respectively located on the inner side of the slide rail 2, and a pull rope 67 is wound on the winding wheel 66. The end of the pull rope 67 away from the winding wheel 66 is connected to the hydraulic cylinder 61 thereof, and a return spring 68 is installed between the hydraulic cylinder 61 and the winding wheel 66. The pull rope 67 is preferably connected to the hydraulic cylinder 61 closest to it, and a guide plate 69 is installed on the adaptive splint 6 away from the placement plate 3. The side of the guide plate 69 away from the adaptive splint 6 is gradually inclined toward the side away from the hydraulic cylinder 61.

[0041] In the specific implementation process, the battery is pushed toward the side close to the placement plate 3, and then, under the squeezing of the battery, the guide plates 69 on both sides drive the telescopic rod 62 to stretch, and while the telescopic end of the telescopic rod 62 is stretched, the telescopic rod 62 and the tension spring 63 on the same side are driven to synchronously and adaptively stretch through the connecting rod 64, and at the same time, the adaptive clamping plate 6 is driven to move synchronously. During this process, the guide plate 69 and the adaptive clamping plate 6 on the side away from the placement plate 3 always clamp the battery to prevent the battery from falling when sliding toward the adaptive clamping plate 6 on the side close to the placement plate 3, and then the adaptive clamping plate 6 clamps the upper and lower sides of the battery, and then the hydraulic cylinder 61 is started, and the telescopic end of the hydraulic cylinder 61 moves toward the side close to the battery, and drives the telescopic rod 62, the tension spring 63 and the adaptive clamping plate 6 to move synchronously, and then the telescopic rod 62 clamps the battery laterally, thereby realizing all-round clamping of the battery.

[0042] Start the drive motor 65, which drives the winding wheel 66 to rotate. The winding wheel 66 reels in the pull rope 67. The pull rope 67 pulls the hydraulic cylinder 61 to move toward the side close to the placement plate 3. The hydraulic cylinder 61 drives the telescopic rod 62, the tension spring 63, the adaptive clamping plate 6 and the battery to move synchronously. The reset spring 68 adaptively contracts. When the battery moves to the middle of the two detection plates 7, the drive motor 65 stops, and the battery is detected by the detection probe 71. When the detection is completed, the drive motor 65 is reversed, and the output shaft of the drive motor 65 drives the winding wheel 66 to release the pull rope 67. The reset spring 68 adaptively contracts and drives the hydraulic cylinder 61 to reset. The battery moves toward the side away from the placement plate 3. Then, when the hydraulic cylinder 61 is reset, the drive motor 65 stops, the hydraulic cylinder 61 contracts, and stops horizontally clamping the battery. The battery that has completed the detection is then removed.

[0043] Reference Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, there are various types of batteries for new energy vehicles, and the gaps and arrangements of the battery components of each type are different. In order to be able to detect various types of batteries, in this embodiment, four columns 72 distributed in a rectangular array are installed on the opposite sides of the two detection plates 7, and a cross plate 73 is connected between every two adjacent columns 72. A guide hole 74 is opened on the lower side of the cross plate 73, and the guide holes 74 of two adjacent cross plates 73 are arranged alternately up and down. A sliding groove 75 is opened on the opposite sides of every two columns 72, and the sliding groove 75 is located at the upper end of the cross plate 73. An adjustment plate 76 is slidably connected between the two opposite sliding grooves 75. The adjustment plate 76 is provided with two adjustment holes 77 symmetrically distributed along its length direction, and a transfer hole 78 is opened in the middle of the adjustment plate 76 between the two adjustment holes 77.

[0044] Furthermore, in this embodiment, a plurality of hinged rods 79 are connected to the inner side of the transverse plate 73, and every two adjacent hinged rods 79 are hinged to each other and arranged at an angle to each other. The two ends of the hinged rods 79 close to the side of the transverse plate 73 are slidably connected in the guide hole 74 and the adjustment hole 77 through cylindrical pins 80 respectively, and the cylindrical pins 80 at the top of the two hinged rods 79 located in the middle of the adjustment plate 76 are rotatably inserted into the transfer hole 78.

[0045] Furthermore, in the present embodiment, a connecting plate 81 is rotatably connected to the hinged portion at the bottom of the hinged rod 79, and the longitudinal connecting plate 81 and the transverse connecting plate 81 are alternately arranged up and down, a sliding hole 82 is provided at the upper end of the connecting plate 81, and a detection probe 71 is installed at the vertical intersection of the plurality of sliding holes 82, and baffles 83 are installed on the outer wall of the detection probe 71 on both the upper and lower sides of the connecting plate 81.

[0046] In the specific implementation process, the spacing of the detection probe 71 along the length direction of the adjustment plate 76 is adjusted by pulling the adjustment plate 76 on either side. When the adjustment plate 76 is pulled upward, the adjustment plate 76 slides upward in the sliding groove 75 and drives the hinge rod 79 to rotate through the cylindrical pin 80. Since the cylindrical pins 80 at the top of the two hinge rods 79 located in the middle of the adjustment plate 76 are located in the transfer hole 78, the cylindrical pin 80 in the middle is limited.

[0047] Because the cylindrical pins 80 at the hinges of the multiple hinged rods 79 are located in the adjustment holes 77, the cylindrical pins 80 can only slide along the adjustment holes 77. Therefore, when the adjustment plate 76 drives the cylindrical pins 80 to move upward, the cylindrical pins 80 located in the sliding holes on both sides drive the hinged rod 79 to tilt toward the side close to the middle cylindrical pin 80. At the same time, the two adjacent hinged rods 79 rotate, the inclination angle of the hinged rod 79 becomes smaller, and the cylindrical pin 80 at the bottom of the hinged rod 79 slides in the guide hole 74 and moves toward the middle of the guide hole 74. At the same time, during the movement of the hinged rod 79, the connecting plate 81 is driven to move synchronously, and during the movement of the connecting plate 81, the detection probes 71 are driven to move synchronously, thereby reducing the spacing between the detection probes 71.

[0048] When the adjustment plate 76 is pushed downward, the adjustment plate 76 slides downward in the sliding groove 75, and the cylindrical pin 80 located in the adjustment hole 77 moves toward the cylindrical pin 80 away from the middle, and the cylindrical pin 80 drives the hinge rod 79 to move synchronously. The hinge joints of two adjacent hinge rods 79 rotate, and the inclination angle of the hinge rod 79 increases. The cylindrical pin 80 located in the guide hole 74 moves toward the side away from the middle of the guide hole 74, and the hinge rod 79 drives the connecting plate 81 to move synchronously, and the connecting plate 81 drives the detection probe 71 to move synchronously, thereby increasing the spacing between the detection probes 71, so that the detection probe 71 can detect battery packs arranged at any spacing, which greatly improves the applicability of the present invention. Example

[0049] Reference Figure 7 As shown, on the basis of the first embodiment, in order to mark a single battery with problems during the detection process, further improvements are made on the basis of the detection probe 71 in this embodiment; specifically, a receiving groove 711 is provided in the middle of the detection probe 71, a sliding rod 712 is slidably connected in the receiving groove 711, a liquid injection hole 713 connected to the receiving groove 711 is provided at the end of the detection probe 71 away from the detection plate 7, a circular plate 714 is connected to the end of the sliding rod 712 close to the receiving groove 711, a first electromagnet 715 is installed on the side of the circular plate 714 close to the receiving groove 711, and a second electromagnet 716 is installed on the side of the receiving groove 711 away from the sliding rod 712 A compression spring 717 is connected between the circular plate 714 and the second electromagnet 716, a one-way valve 718 is installed on the side of the circular plate 714 close to the receiving groove 711, the second electromagnet 716 is electrically connected to the voltmeter 5, there is colored paint between the circular plate 714 and the receiving groove 711, and the circular plate 714 slides against the inner wall of the receiving groove 711, a boost ring 719 is installed on the end of the receiving groove 711 close to the detection plate 7, a boost spring 710 is connected between the boost ring 719 and the receiving groove 711, a controller (not shown in the figure) is installed on the side of the detection plate 7 away from the detection probe 71, and the controller, the voltmeter 5 and the second electromagnet 716 are electrically connected.

[0050] It should be noted that: the first electromagnet 715 and the second electromagnet 716 are on opposite sides in a state of repulsion, and the repulsive force between the first electromagnet 715 and the second electromagnet 716 is greater than the compression spring 717. The compression spring 717 always applies a pulling force to the circular plate 714, so that after the second electromagnet 716 is powered off, the compression spring 717 pulls the circular plate 714 to move toward the side close to the second electromagnet 716. At the same time, the boost ring 719 is squeezed by the boost spring 710, so that the colored paint in the accommodating groove 711 always moves toward the side close to the circular plate 714.

[0051] In the initial state, the second electromagnet 716 is in a powered state, and the sliding rod 712 is in the liquid spraying hole 713, so that the liquid spraying hole 713 is in a sealed state.

[0052] In the specific implementation process, when the detection probe 71 finds that a single battery has a problem through the voltmeter 5 during the detection of a single battery, the voltmeter 5 transmits a signal to the controller, and then the controller controls the second electromagnet 716 to cut off the power, so that the first electromagnet 715 loses the repulsive force of the second electromagnet 716, and then the circular plate 714 moves toward the side close to the second electromagnet 716 under the pull of the compression spring 717. At this time, the one-way valve 718 opens under the pressure of the colored paint, and the one-way valve 718 can only allow the colored paint in the receiving groove 711 to flow into the spray hole, the sliding rod 712 moves synchronously with the circular plate 714, the sliding rod 712 moves out of the spray hole 713, and then the colored paint flows out of the spray hole 713, and at the same time, the colored paint flowing out of the one-way valve 718 enters the spray hole 713 for replenishment, thereby achieving continuous operation and marking the batteries with problems.

[0053] When the battery is tested by the above-mentioned battery testing system test device for new energy vehicle maintenance, the following steps are included: S1, battery clamping: the battery is pushed toward the side close to the placement plate 3, and then, under the squeezing of the battery, the guide plates 69 on both sides drive the telescopic rod 62 to stretch, and while the telescopic end of the telescopic rod 62 is stretched, the telescopic rod 62 and the tension spring 63 on the same side are driven to synchronously and adaptively stretch through the connecting rod 64, and at the same time, the adaptive clamping plate 6 is driven to move synchronously. During this process, the guide plate 69 and the adaptive clamping plate 6 on the side away from the placement plate 3 always clamp the battery to prevent the battery from falling when sliding toward the adaptive clamping plate 6 on the side close to the placement plate 3. Then, the adaptive clamping plate 6 clamps the upper and lower sides of the battery, and then the hydraulic cylinder 61 is started. The telescopic end of the hydraulic cylinder 61 moves toward the side close to the battery, and drives the telescopic rod 62, the tension spring 63 and the adaptive clamping plate 6 to move synchronously, and then the telescopic rod 62 clamps the battery laterally, thereby realizing all-round clamping of the battery.

[0054] S2, battery detection: Then the adaptive clamp 6 drives the battery to move along the slide rail 2 to the side close to the placement plate 3. When the adaptive clamp 6 drives the battery to move between the two detection plates 7, the battery charging slot is inserted into the charging interface 4. At this time, the battery is in the middle of the two detection plates 7. Then the battery is discharged. During the discharge process, the capacity of the battery is detected to see if it meets the standard, and the internal resistance of the battery is detected at the same time. When an abnormal detection occurs, the servo motor 23 is started, and the servo motor 23 drives the rotating gear 21 to rotate. The rotating gear 21 drives the sliding racks 22 on both sides to move toward the side close to the battery, and drives the detection plate 7 connected thereto to move toward the side close to the detection plate 7. Then the detection probes 71 at the upper end of the detection plate 7 are respectively connected to the positive and negative poles of multiple small batteries in the battery, and then a single small battery in the battery is detected, so as to quickly detect the problematic small battery, and then the problematic small battery can be replaced.

[0055] S3. Spacing adjustment: The spacing of the detection probes 71 along the length direction of the adjusting plate 76 is adjusted by pulling the adjusting plate 76 on either side. When the adjusting plate 76 is pulled upward, the adjusting plate 76 slides upward in the sliding groove 75 and drives the hinge rod 79 to rotate through the cylindrical pin 80. Since the cylindrical pins 80 at the top of the two hinge rods 79 located in the middle of the adjusting plate 76 are located in the transfer hole 78, the cylindrical pin 80 in the middle is limited.

[0056] Because the cylindrical pins 80 at the hinges of the multiple hinged rods 79 are located in the adjustment holes 77, the cylindrical pins 80 can only slide along the adjustment holes 77. Therefore, when the adjustment plate 76 drives the cylindrical pins 80 to move upward, the cylindrical pins 80 located in the sliding holes on both sides drive the hinged rod 79 to tilt toward the side close to the middle cylindrical pin 80. At the same time, the two adjacent hinged rods 79 rotate, the inclination angle of the hinged rod 79 becomes smaller, and the cylindrical pin 80 at the bottom of the hinged rod 79 slides in the guide hole 74 and moves toward the middle of the guide hole 74. At the same time, during the movement of the hinged rod 79, the connecting plate 81 is driven to move synchronously, and during the movement of the connecting plate 81, the detection probes 71 are driven to move synchronously, thereby reducing the spacing between the detection probes 71.

[0057] When the adjustment plate 76 is pushed downward, the adjustment plate 76 slides downward in the sliding groove 75, and the cylindrical pin 80 located in the adjustment hole 77 moves toward the cylindrical pin 80 away from the middle, and the cylindrical pin 80 drives the hinge rod 79 to move synchronously. The hinge joints of two adjacent hinge rods 79 rotate, and the inclination angle of the hinge rod 79 increases. The cylindrical pin 80 located in the guide hole 74 moves toward the side away from the middle of the guide hole 74, and the hinge rod 79 drives the connecting plate 81 to move synchronously, and the connecting plate 81 drives the detection probe 71 to move synchronously, thereby increasing the spacing between the detection probes 71, so that the detection probe 71 can detect battery packs arranged at any spacing, which greatly improves the applicability of the present invention.

[0058] S4. Battery marking: When the detection probe 71 finds that a single battery has a problem through the voltmeter 5 during the detection of a single battery, the voltmeter 5 transmits a signal to the controller, and then the controller controls the second electromagnet 716 to cut off the power, so that the first electromagnet 715 loses the repulsive force of the second electromagnet 716, and then the circular plate 714 moves toward the side close to the second electromagnet 716 under the pull of the compression spring 717. At this time, the one-way valve 718 opens under the pressure of the colored paint, and the one-way valve 718 can only make the colored paint in the receiving groove 711 flow into the spray hole, the sliding rod 712 moves synchronously with the circular plate 714, the sliding rod 712 moves out of the spray hole 713, and then the colored paint flows out of the spray hole 713, and at the same time, the colored paint flowing out of the one-way valve 718 enters the spray hole 713 for replenishment, thereby achieving continuous operation and marking the batteries with problems.

[0059] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A battery testing system for new energy vehicle maintenance, comprising a frame (1), two slide rails (2) are mounted on the upper end of the frame (1), a placement plate (3) is mounted on either side of the two slide rails (2) in the extension direction, a charging interface (4) is mounted on the side of the placement plate (3) close to the slide rails (2), a voltmeter (5) is mounted on the side of the placement plate (3) away from the slide rails (2), the charging interface (4) and the voltmeter (5) are electrically connected, and the system is characterized in that: An adaptive clamping plate (6) is slidably connected inside the slide rail (2), and detection plates (7) are installed on both upper and lower sides of the slide rail (2); The slide rail (2) is rotatably connected to the opposite sides of the slide rail (2), and two sliding racks (22) are symmetrically installed on both sides of the rotating gear (21). The sliding racks (22) are meshed with the rotating gear (21). The two sliding racks (22) are vertically arranged, and the extension sections of the two sliding racks (22) are respectively connected to the detection plates (7) on the upper and lower sides. The opposite sides of the two detection plates (7) are provided with a plurality of detection probes (71), and the detection probes (71) are electrically connected to the voltmeter (5); Four upright posts (72) arranged in a rectangular array are installed on opposite sides of the two detection plates (7), a horizontal plate (73) is connected between every two adjacent upright posts (72), a guide hole (74) is provided on the lower side of the horizontal plate (73), the guide holes (74) of the two adjacent horizontal plates (73) are arranged in an up-down staggered manner, a sliding groove (75) is provided on opposite sides of every two upright posts (72), the sliding groove (75) is located at the upper end of the horizontal plate (73), an adjustment plate (76) is slidably connected between the two opposite sliding grooves (75), the adjustment plate (76) is provided with two adjustment holes (77) symmetrically distributed along its length direction, and a transfer hole (78) is provided in the middle of the adjustment plate (76) between the two adjustment holes (77); A plurality of hinged rods (79) are connected to the inner side of the transverse plate (73), and every two adjacent hinged rods (79) are hinged to each other and arranged to be inclined to each other. The two ends of the hinged rods (79) close to the transverse plate (73) are respectively slidably connected to the guide hole (74) and the adjustment hole (77) through cylindrical pins (80), and the cylindrical pins (80) at the top of the two hinged rods (79) located in the middle of the adjustment plate (76) are rotatably inserted into the transfer hole (78); A connecting plate (81) is rotatably connected to the hinged bottom of the hinged rod (79), and the longitudinal connecting plates (81) and the transverse connecting plates (81) are arranged alternately up and down, and a sliding hole (82) is provided at the upper end of the connecting plate (81), and detection probes (71) are installed at the vertical intersections of the plurality of sliding holes (82); Blocking plates (83) are installed on the outer wall of the detection probe (71) on both the upper and lower sides of the connecting plate (81).

2. A battery testing system for new energy vehicle maintenance according to claim 1, characterized in that: A hydraulic cylinder (61) is slidably connected inside the slide rail (2); a telescopic rod (62) is connected to the telescopic end of the hydraulic cylinder (61); both upper and lower telescopic ends of the telescopic rod (62) are connected to adaptive clamping plates (6); a tension spring (63) is installed between an extended section of the adaptive clamping plate (6) and the hydraulic cylinder (61); and a connecting rod (64) is connected between the two adaptive clamping plates (6) along the length direction of the slide rail (2).

3. A battery testing system for new energy vehicle maintenance according to claim 2, characterized in that: A drive motor (65) is installed on one side of the slide rail (2) close to the placement plate (3) through a motor seat. Two winding wheels (66) are sleeved on the outer wall of the output shaft of the drive motor (65). The two winding wheels (66) are respectively located on the inner side of the slide rail (2). A pull rope (67) is wound around the winding wheels (66). One end of the pull rope (67) away from the winding wheels (66) is connected to the hydraulic cylinder (61) thereof. A return spring (68) is installed between the hydraulic cylinder (61) and the winding wheels (66).

4. A battery testing system for new energy vehicle maintenance according to claim 2, characterized in that: A guide plate (69) is installed on the adaptive clamping plate (6) at a side away from the placement plate (3). The guide plate (69) is located at a side of the adaptive clamping plate (6) away from the placement plate (3). The side of the guide plate (69) away from the adaptive clamping plate (6) is gradually inclined toward a side away from the hydraulic cylinder (61).

5. A method for repairing a battery for a new energy vehicle, comprising a battery testing system for repairing a new energy vehicle as claimed in any one of claims 1 to 4, characterized in that: Repair method The following steps are involved: S1: Battery clamping: firstly, the upper and lower sides of the battery are clamped by the adaptive clamping plate (6), and then the battery is clamped laterally by the telescopic rod (62), so as to clamp the battery in all directions; S2: Battery detection: The adaptive clamping plate (6) then drives the battery to move along the slide rail (2), and then discharges the battery. During the discharge process, the battery capacity is detected to see if it meets the standard, and the internal resistance of the battery is detected at the same time. If an abnormality is detected, the multiple small batteries in the battery are continuously detected; S3: spacing adjustment: by pulling the adjustment plate (76) on either side, the spacing of the detection probes (71) along the length direction of the adjustment plate (76) is adjusted, so that the spacing of the detection probes (71) becomes smaller or the spacing of the detection probes (71) becomes larger; S4: Battery marking: When the detection probe (71) finds that a single battery has a problem during the detection of the single battery, the detection probe (71) marks the battery with the problem.

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